Question

Which type of material is the channel of a unijunction transistor made up of?

(a) PN type

(b) It doesn’t affect the working

(c) P type

(d) N type

The question was posed to me during an interview.

I want to ask this question from The Unijunction Transistors in chapter Field-Effect Transistors of Electronic Devices & Circuits

Answer 1

The correct option is (d) N type

To elaborate: The core conducting component is the N-type channel of the transistor. Unijunction transistor consists of a single solid piece of N-type semiconductor material forming the main current carrying channel.